1. Bachmann, F., Bannick, C.G., Giese, E., Glante, F., Kiene, A., Konietzka, R., Rück, F., Schmidt, S., Terytze, K., van Borries, D., 1997. Fachlicke Eckpunkte zur Ableitung von Bodenwerten im Rahmen des Bundes-Bodebschutzgesetzes. In: Rosenkranz, D., Bachmann, G., Einsele, G., Harress, H.-M. (Eds.), Bodenschutz — Ergänzbares Handbucher Massnahmen und Empfehlungen fur Schutz, Pflege und Sanierung von Boden, Landscafte and Grundwasser. Kennzahl 3500, Erich Schmidt Verlag, Berlin, Germany.
2. Soil variability: a review;Beckett;Soils Fert.,1971
3. The response of soil quality indicators to conservation management;Bolinder;Can. J. Soil Sci.,1999
4. Doran, J.W., Parkin, T.B., 1994. Defining and assessing soil quality. In: Doran, J.W., Coleman, D.C., Bezdicek, D.F., Stewart, B.A. (Eds.), Defining Soil Quality for a Sustainable Environment, SSSA Special Publication No. 35. Soil Science Society of America, Madison, pp. 3–21.
5. Duncan, H.J., Flowers, T.H., Pulford, I.D., Wilson, W.D., 1995. Analytical procedures for the analysis of heavy metals in contaminated soils. In: van den Brink, W.J., Bosman, R., Arendt, F. (Eds.), Contaminated Soil’95. Kluwer Academic Publishers, Dordrecht, The Netherlands, pp. 731–732.